Telecommunications Technologies for Small Businesses serves as a sort of cheat sheet for anyone shopping around for voice and (especially) data links for business applications. Frank Panzarino defines terms, explains concepts, and highlights the relative merits of different ways of getting signals from point A to point B. A lot of this is academic--rare is the business owner who needs to know about television scan rates in order to make a buying decision--but other aspects of his coverage, such asbilling metrics for different kinds of networks, will prove valuable. A few of Panzarino's descriptions and explanations are inaccurate (a favorite: "Recently, there have been several attempts to standardize on suffixes such as .com, .net, .edu, etc., without much success") and more than a few tread the narrow line between concise and oversimplified, particularly when they have to do with applications of telecommunications links (such as Internet connectivity). Still, his definitions...

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